Lamp.



F. VAN GELDEREN.

LAMP.

APPLICATION FILED APR.16, 1913.

Patented Aug. 26, 1913.

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illil l lillll "FATENT f FREDERIK VAN GELDEBEN, OF CHICAGO, ILLINOIS, AS$IQNOR TO LINDSAY LIG-l-ri'l COMPANY, OF Q HIQAGO, ILLINOIS, A GOBPOKATIQN OF ILLINGIS.

LAMP.

130713172, s ecification of Letters Patent. Patented Au 15L 5.

Applieationfiled s n 16, 1313. Serial no. censor.

TodZl'whom 2'15 mag concern: l valve 7; and above thev fitting (l is another Be it. known that l, FnnDnurK AN .GELQE- fitting 8, the passage through which is con- BEN, a subj -t out the Qu the Nethertrolled by a plug valve 9,which is operated lands, residing at Chicago, in the-oounty-of bychains 10. A pilotburnert-ube 11 is con- Cook and State of Illinois, haveiinvented 1 nectedvwith the fitting S,and serves to main- 80 new and useful Lamp, of which the follow tain a Small flame in the vicinity of the ing is a specification. mantle B The fitting is equipped with My invention relates particularly wagesa sleeve or ,air-shutterfi whioh controls the la d my p i ry objwb ,t myid admisslon of air to the Bunsen burner.

10 a lamp of improved general construction- Hematite dower portion of the lamp-body, 65 and 1 operation, which shall be of. 'co mpact the, outer shell flares outwardly and downfonm, ,neat appearance, and capable of being Wardly, 338.,1I1d1Q2Lt6d. atii; and th l b manufactured at small oost. support is carried lay-the portion 1 of the The invention is illustrated in its preouter shell. T e globerholder A may-boot 1 5 ferred embodiment in the accompanying any desired construction. ilt is shown as an '70 drawing, in which nnular member :12 fittedwith set-screws 13 Figure 1 represents a broken vertical seoadapted to engage the external head with tional view of a lamp constructed in accordwhich. the nook-portion of the globe is proance with my invention, the section being dedtaken as indicated at line 1 of 2; Fig. Elie lower end of the ,rnember 2 is spun 75 2, a horizontal section taken as indicatedat Over theoout l e g of n annular plate 14; line 2 of Fig; 1; Fig. 3, a broken vertical which has a "down-turned flange 14a over section taken as indicated at line f Fig. which is telescopically -fitted the upper cy- 2; and Fig. l, a broken elevational view, lmdrlcal portion otashield 15 whose lower showing the.- manner in which an air-de-r end flares outwardly or is :frusto-fl n c l. 89

fleeting shield employed is detachably con- The member 1 is provided with lateral nected with the lamp-body. studs 16 whlch engage bayonet slots 16*- with In the form illustrated, the invention is which the upper portion ofxt-he member 15 embodied in a lamp comprising a body A is provideias shown in'Eig-d. The bayo- 3 equipped atits lower portion with a globenot slots 16 are partially formedby striking 85 holder A ;a gas-pipe B on which the lamp themetal of the member 15 outwardly, as body is suspended and which is fitted with indicated at 16", the outwardly struck por a burner l3 equipped with a mantle B3; tron of the metal being adapted. to slip over and a globes suspended from the globethe end of the stud 16 when the shield is v holder A. removed. 90 i The lampbody comprises'iiari outer ap W l f the m m r lg md 2 are proximately frust-o-conical shell 1, the encut away, as indicated at points 17 toafford larged lower end of which is equipped with outlets for the products of combustion. At the globe-bolder A; and an inner shell '2 the upper margins of the cut-away places,

which conforms generally to the shape of the metal of the two walls is curved out- '9 the member 1, but is separated therefrom wardly, as indicated. at 17 E in Fig. 3. Enby a small annular space 3. The frustocircling the member 1 .near its base portion. conical member 1 has its apex portion 1 is a sheet metal member 18 of annular form, struck or dished downwardly, thus providand having a contracted. lower end portion ing a housed neck-portion having an in l 18 The member.l8 fiares upwardly and 9 turned flangel through which extends a outwardly, thus forming with the openings threaded portion l of the pipe 13. The t 17 channels 19 through which the products memberQ has its upper end provided with k of combustion may escape. The'inember 18 an inturned flange 2 through which the may be given. an ornamental appearance. threaded portion l of the pipe B extends. it not only serves to direct the products of lhe flanges 1* and 2 are clamped between l combustion outwardly, but also as a shield nuts screwed on the portion 4 of the'pipe. for the openings 1'? which are thus practi- Above the flanges mentioned, the pipe ll is cally concealed from view.

" provided with a fitting 6, the l ,The portion 1 of the member 1 is prothrough which is controlled by a needlev ided with a1r-adm1ss1on ope i g 20. A 119 impinge directly against the mantle.

noted by the arrows in Fig. 1, the entering air is deflected by the shield 15 so as not to The member 18 is detachable, its contracted lower portion 18 being provided internall y with vertical grooves 18 which permit the member to be slipped over lateral studs 21 carried by the base portion of the member. 1. After being slipped over the studs 21, the member 18 is rotated, thus bringing the studs above the annular shoulder 22 so that the outer shield 18 is thus secured in place.

The construction described is simple, capable of being manufactured at small cost, and presents a good appearance. Moreover, as experience has demonstrated, the improved lamp operates in a thoroughly eiiicientmanner.

The foregoing detailed description has been given for clearness of understanding only, and no unnecessary limitation should be understood therefrom, but the appended claims should be construed as broadly as permissible, in view of the prior art.

What I regard as new and desire to secure by Letters Patent is:

1. In a gas-lamp, the combination with a gas-pipe equipped at its lower end with a burner, of abody comprising inner and outer shells having contracted upper ends with openings therethrough for said gaspipe, means securing the body to said pipe at the point where the pipe passes through said contracted ends, said body having lateral openings with the metal at the upper portions of saidopenings curved outwardly, and an upwardly and outwardly flaring shield encircling said body and partially.

guarding said openings.

. 2. In a lamp, the combination of a gas-- pipe, a body comprising an outer frustoconical shell havin its contracted upper end portion struck inwardly and. provided with an inturned flange with an opening therethrough admitting said pipe, an inner frusto-conical shell having an intur'ned flange disposed below said first-named flange and having an opening admitting said pipe, nuts on said pipe between which said flanges are clamped, said shells having a lateral opening, and a shield encircling the outer shell and forming with said opening a channel for the escape of products of combustion.

3. In a lamp, the combination of a gaspipe, a body comprising an outer frusto-conical shell having its contracted upper end portion struck inwardly and provided with an inturned'. flange with an opening therethrough admitting said pipe, an inner Zrveto-conical shell having an inturned flange disposed below said first-named flange and having an opening admitting said pipe, nuts on said pipe between which said flanges are clamped, said shells having a lateral shell, the upper portions of said shells being contracted and joined to said pipe, said shells having a lateral opening for the escape of products of combustion, an upthe escape of products of I wardly flaring external shield encircling the outer shell and partially guarding said opening, and an inner shield depending fromsaid inper shell and guarding the burners 5. In a gas-lamp, the combination of a gaspipe equipped at its lower end with a burner, a body comprising an outer frustoconical shell having its upper contracted end struck downwardly and inwardly, an inner shell conforming generally to the shape of the outer shell and having an inturned upper flange, thecontracted portions of said shells being connected with said pipe, a globeholder carried by the lower portion of the outer shell, a burner shield carried by the lower portion of the inner shell, and gas regulating means connected with said pipe above said outer shell.

6. In a gas-lamp, the combination of gas-pipe equippedat its lower end with/a burner a bod com )I'lSlIW an outer Irustoconical shell having its upper contracted end struck downwardly and inwardly, air inner shell conforming generally to the shape of the outer shell and having an inturned upper flange, the contracted portions of said shells being connected with said pipe, a globeholder carried by the lower portion of the outer shell, a burner shield carried by the lower port-i911 of the inner shell, said shells being provided with a lateral outlet, and gas-regulatin means connected with said pipe above said outer shell.

7. In a gas-lamp, the combination of a gas-pipe equipped at its lower end with a burner, a body comprising an outer frustoconical shell having its upper contracted end struck downwardly and inwardly, an 1111161" shell conforming generally to the shape of the outer shell and having an inturned upper flange, the contracted portions of said shells being connected with said pipe, a globeholder carried by the lower portion, of the outer shell, 2. burner shield carried by the lower portion oithe inner shell, said shells being provided with alateral outlet, an upwardly and outwardly flaring external shield encircling said outer shell and partially guarding said opening, and gas-regulating- 130 means connected with said pipe above said outer shell.

8. In a gas-lamp, the conibination'of a gaspipe equipped at its lower end with a burner, of a body composed of upwardly converging inner and outer shells having contracted upper-ends provided with open .ings through which the gas-pipe extends,

means connecting the contracted upper ends of said shells with the gas-pipeg'sa'fd' shells having a lateral outlet for the products of combustion, gas-regulating means connected with said pipe above said body, a globelower portion of the inner shell, and an upwardly and outwardly flaring outer shield having its lower portion closely encircling the outer shell below the plane of said lateral opening. 1

FREDERIK VAN GELDEREN. In presence of- D. C. THORSEN, A. FISCHER.

Copies of this patent may be obtained or five cents each, by addressing the Commissioner of Yatents, Washington, D. 0. p 

